Updating U, P

• U matrix example:

HDD

NIC

Gcc emacs netscape

12

0.7

0.4

0

0

2.3

Matrix element refers to the reciprocal of the average

Time between requests (TBR)

TBRn = ?. TBR + (1- ?). TBRn-1

U(d,r) – 1/ TBRn

0 < ? ə

If ? = 0, TBRn is constant using the first TBR and for ? = 1,

TBRn is last TBR.

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